The Pistol Pump from California Exotic Novelties has a 20cm long and 6cm wide cylinder. The cylinder and pump are made from ABS, which is a hardened plastic, making them very rigid. The sleeve and hose are made from a soft pliable PVC, making them flexible and the sleeve can then mould to your body shape. The sleeve and cylinder fit snugly over your penis, creating a vacuum seal. The pistol grip pump is then used to suck the air from the cylinder and create a vacuum inside the cylinder. The pistol pump also has a quick release valve, which allows for fast penis pumping and then getting your penis into the action more quickly. The Pistol Pump is a great beginner and intermediate penis pump, with an easy pump action.